[1] Indiana Univ Sch Med, Indianapolis, IN 46202 USA
[2] Duke Univ, Dept Populat Hlth Sci, Sch Med, Durham, NC USA
[3] Duke Univ, Duke Clin Res Inst, Sch Med, Durham, NC USA
[4] Dartmouth Coll, Hanover, NH 03755 USA
[5] Duke Univ, Duke Human Vaccine Inst, Sch Med, Durham, NC USA
[6] Duke Univ, Dept Pediat, Div Infect Dis, Sch Med, Durham, NC USA
[7] AdventHlth Children, Div Infect Dis, Dept Pediat, Orlando, FL 32803 USA